Selected tag(s): ERCOT

Well, it didn’t take long before the Electric Reliability Council of Texas (ERCOT) released, at the request of Texas’ very political Public Utilities Commission, another report about the impacts of the Environmental Protection Agency’s (EPA’s) rules designed to protect public health.

This time ERCOT, which manages 90 percent of Texas’ electric grid, looked at the impact of seven EPA clean air safeguards on the electric grid, including the Cross State Air Pollution Rule (CSAPR), the Mercury Air Toxics Standard (MATS), the Regional Haze program (all of which go back before the Obama administration), the proposed Clean Power Plan, which would set the first-ever national limits on carbon pollution from existing power plants, and others. What was surprising to learn, though, is that after power companies in the state start complying with EPA’s other clean air protections, the proposed Clean Power Plan poses a minimal incremental impact to the power grid. We would only have to cut 200 megawatts of coal-fired generation, which equates to less than one coal-fired power plant. Read More »

We knew this was coming. Everyone knew. The power sector is the single largest source of carbon pollution in the U.S. and one of the largest in the world, yet there are no limits on how much carbon power plants can emit into our air. The U.S. Environmental Protection Agency’s Clean Power Plan (CPP) for new and existing power plants is urgently needed, is well within Texas’ reach, and can ensure that Texas (more so than other states) forges a strong and prosperous clean energy economy.

But this week, the Electric Reliability Council of Texas (ERCOT), which manages roughly 90 percent of Texas’ power grid, issued a report that overestimates the challenges posed by the CPP to the state’s electric grid reliability. Furthermore, it failed to appropriately recognize key tools available to ERCOT and the state to meet the proposed CPP.

The Electric Reliability Council of Texas (ERCOT), Texas’ power grid operator, presented a report to its Board of Directors this week confirming what we already knew: demand response is a worthwhile investment that strengthens Texas' power grid.

Demand response is an innovative tool used by utilities to reward people who use less electricity during times of peak, or high, energy demand. In effect, demand response relies on people, not power plants, to meet the demand for energy. And on January 6th when the Polar Vortex hit Texas, it did just that. Read More »

As we begin a new year, the outlook for 2014 looks bright. But as the Polar Vortex has descended upon the U.S. over the last few days, we have been reminded of the past, specifically the winter of 2011 when Texas’ electricity grid stuttered under the extreme cold.

Monday, as a record-breaking cold snap whisked over the U.S., the Electric Reliability Council of Texas (ERCOT), the state’s grid operator, warned of possible blackouts, just as they did in 2011. We were lucky this time, but in February of 2011 we were not, and blackouts occurred throughout the state.

ERCOT’s warning meant that the grid's power reserves “dropped below a comfortable threshold,” and the "system was just one step away from rolling blackouts” as the need for energy outpaced supply. As these blackout threats loomed, two power plants succumbed to the cold and went down. The loss in capacity amounted to about 3700 megawatts (MW), with 1800 MW lost due to the cold. According to Dan Woodfin, ERCOT’s Director of System Operations, “if we had lost another unit it would have put us into an Energy Emergency Alert Three” – the stage that prompts rolling blackouts. This is unnecessary and unacceptable. Read More »

Over the past two years, Texas’s changing energy landscape has been a focus of EDF’s work. In our Texas’ Energy Crunch report from March 2013, we highlighted that Texas has a peak capacity constraint – meaning that the power grid becomes strained when, for example, everyone is using their air conditioning units on hot summer afternoons. This challenge, coupled with increased climate change and drought, signal the need to prepare by adopting a smarter grid and cleaner resources.

The Public Utilities Commission of Texas (PUCT) and the Electric Reliability Council of Texas (ERCOT) have been engaged in this conversation and various proposals have been laid on the table to determine what Texas’ energy future will look like. EDF maintains the position that, whatever reforms are made, customer-facing, demand-side resources – defined here as demand response (DR), renewable energy, energy efficiency and energy storage – must play a key role to ensuring reliability, affordability, customer choice and environmental improvements.

Energy-Only Status Quo or Capacity Market or…?

Texas’ current energy-only market structure pays power plants only for the energy they produce. This is beneficial in that generators are not overcompensated, but the downside is that energy companies aren’t incentivized to build in Texas and energy management providers (DR companies) are not viewed as equal players. Energy prices are low due to an upsurge in cheap, abundant natural gas and wind – and without a guarantee for a high return on investment, companies will not take the risk of constructing costly new power plants. Read More »

We’ve discussed the potentially grave impacts of the Texas Energy Crunch in a number of our previous blog posts. Time and time again, we repeat that the cheapest, cleanest and most reliable energy resource is the energy we save through energy efficiency. But our energy efficiency programs in Texas are still modest compared to other states. Beyond politics, there is another key issue limiting our state’s energy savings: Texas does not treat energy efficiency as a ‘resource.’

Traditionally, energy efficiency is left ‘invisible’ to utilities and grid planners—so they lose count of its many benefits. Treating energy efficiency as a resource, instead, puts it on a level playing field with other energy resources, such as power plants. This allows utilities to realize the unique benefits energy efficiency has over other energy sources.

Energy efficiency can reduce harmful greenhouse gases, save people money and create jobs – and it is extremely competitive with other energy resources. When the energy saved through efficiency is weighed against new energy resources, efficiency upgrades to buildings and homes generally weigh in at just one-third of the cost of building a new fossil-fuel power plant. On top of that, energy efficiency upgrades can eliminate the need to install or replace other expensive electric grid equipment. This cost-savings is one of the many benefits generally overlooked by utilities and electric grid planners.

Part of what prevents electric grid planners from counting efficiency as a resource in Texas is the way that the energy market is structured. When Texas deregulated its energy market in 1999, the aim was to increase options for customers and lower prices. Efficiency programs were not included in the new market structure. Instead, they were left for transmission and distribution utilities (TDUs), the “wires” companies that deliver electricity from power plants to customers, to manage. With efficiency left out of the restructured energy market, the Public Utility Commission of Texas (PUC) and other state leaders tend to view efficiency programs as subsidies that exist outside of the market. Read More »